code: def test_defaults(self):
      valid_feature_dict = {
          "type": "Feature",
          "geometry": {
              "type": "polygon",
              "coordinates": [[[71.049, 38.408], [71.334, 38.280]]],
          },
          "properties": {"name": "Afghanistan"},
      }
      feature = GeoJsonFeature(feature=valid_feature_dict)
      state = feature.get_state()
      assert state["fill_opacity"] == 0.4
      assert state["stroke_opacity"] == 0.6
  
file_path: gmaps/gmaps/tests/test_geojson_layer.py
imports: import unittest
  from ..None import geojson_layer, InvalidGeoJson, GeoJsonFeature
label_desc: Use image node_id 1 for calling the TestGeoJsonFeature obj's underlying member method code with example usage: obj.test_defaults() without return types